BIOLOGICALLY ACTIVE NATURAL PRODUCTS: AGROCHEMICALS - CHAPTER 10 potx

... and R. J. Smeda CONTENTS 10. 1 Introduction 10. 2 Examples 10. 2.1 Glandular Localization 10. 2.2 Subepidermal Localization 10. 3 Conclusions References 10. 1 Introduction The function of most secondary ... most lucrative sources of phytotoxic allelochemi- cals. Plant-derived phytotoxins have been the sources of two commercial herbicides: a 1, 8- cineole-derived herbicide, cinmethyl...

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... fresh K-20) 1 /100 0 c 15 (±)-CA 10 6 (+ )-( 1S,2S)-CA 5 6–7 (– )-( 1R,2R)-CA 5 6 (±)-AlloCA 10 8 10 (±)-AlloCA b 10 10–11 (+ )-( 1R,2S)-AlloCA 10 12–13 5 10 11 1.67 9 (– )-( 1S,2R)-AlloCA 10 8–9 5 9 10 1.67 ... aromatic amino acids), not naturally occurring JA-Gly, JA-β-Ala, JA-ACC, JA-(+)-coronamic acid were also synthesized. Among them, JA-Leu, JA-Ile, JA-Val, JA-ACC,...

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... 75(5): 56 0-5 64. 14. Abd-El-Moity, T.H. and Shatla, M.N. 1981. Biological control of white rot disease of onion (Sclerotium cepivorium) by Trichoderma harzianum. Phytopath. Z., 100 : 2 9-3 5. 15. ... cinerea cul- tures were established on potato dextrose agar (PDA), each from a single spore isolated from a diseased fruit. Spore suspensions were made by washing spores from a 1 0- to 1...

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... 2-( 4-dichlorophenoxy) phe- noxy-methyl propanoate, Hoelon ® , 1974; Butyl 2-[ 4-( 5-trifluoro-2-pyridyloxy)phenoxy] propionate, Fusilade ® , 1980; Methyl 2-( 4-( (3-chloro-5-trifluoromethyl )-2 -pyridinyloxy )- phenoxy) ... ajmaline, serpentine, and serpertinine. 3-5 Of these, reserpine, 11,17α-dimethyoxy-18 -[ (3,4,5-trimethoxybenzoyl) oxy ]-3 β, 20α-yohimban-1 6- -c...

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... silica gel using hex- ane-EtOAc, mixtures of increasing polarity consisting of four kaurenoid carboxylic acids: (–)-kaur-16-en-19-oic acid (28), (–)-grandifloric acid, (–)-angeloylgrandifloric ... –53%, 10 –9 M; 27, –48%, 10 –8 M) and shoot (27, –24%, 10 –6 M) and root growth (26, –27%, 10 –8 M, 27, –22%, 10 –8 M) of T. aestivum. All germacranolides tested possess an α-methylene-γ-lac...

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... Control) Shoot D.W. 2 Root D.W. 2 (60°C oven-dried leaf) Oryza sativa (upland) 101 71 83 Zea mays 110 104 103 Sorghum bicolor 91 77 91 Glycine max 98 97 107 Phaseolus vulgaris 160 101 88 Arachis hypogaea 105 95 134 Solanum ... 12, 13, 17 Velvetbean 2-yr. crop 0.00 (0.0) No emergence Velvetbean 1-yr. crop, 1-yr. fallow 2 3.05 (74.8) 1, 10, 12, 13, 16, 18 Fallow 3-yr. fallow 3 0.97 (37...

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... hyperoside, quercetin 4 - -xyloside, 3-methylquercetin 3 - -xyloside 19 Dienoic, trienoic, and tetraenoic acids 20 α-aminoadipic acid 21 β-sitosterol, gallic acid, 1-hexacosanol 22 Nupharin, ... gallic acid, myricitrin, myricetin, 1,2,3,4,6-pentagalloyl- D-glucose, and 2,3,4,6-tetragalloyl-D-glucose. Examination of alkaloids from N. lutea showed 6,6′-dihydroxythiobinupharidine to be high...

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... derivatized to yield the herbicides dicamba (3,6-dichloro- 2-methoxybenzoic acid) and chloramben (3-amino-2,5-dichlorobenzoic acid). The allelo- pathic terpenoid 1,8-cineole has served as a model for the ... has not yet been released. 1 4-1 6 5.2 Tree-of-Heaven (Ailanthus altissima) Tree-of-heaven (Ailanthus altissima, Simaroubaceae) has been known since the work of Mer- gen in 1959 to prod...

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... natural compounds: (24R )-1 4α-methyl-5α-ergostan-3-one; 14α-methyl-5α-cholestan-3-one; cycloart-5-ene- 3β,25-diol; cycloart-3β,25-diol; 4α-methylergostan-5-ene-3β-ol; stigmast-4,22-dien-6β-ol- 3- one ... stigmast-4,22-dien-6β-ol- 3- one and 24-phenylethyl-cholest-3,6-dione were identified; together with several known compounds: (24R)-stigmast-4-ene-3-one; ergost-4-ene-3-one; (24R)-s...

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... analog, L-(N 5 -phosphono)methionine-S-sulfoximine (PMSO) (see Figure 9.8) is a potent GS inhibi- tor and a metabolite of L-(N 5 -phosphono)methionine-S-sulfoximinyl-L-ala-L-ala (PMSO- Ala-Ala) 76 ... herbicides (pendimetha- lin [N-(1-ethylpropyl )-3 ,4-dimethyl-2,6-dinitrobenzenamine]; thiobencarb [S-[(4-chlorophe- nyl)methyl]-diethylcarbamothioate]; quinclorac (3,7-dichloro-8-quinolineca...

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